1. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Western Ontario, 1151 Richmond St., London ON, Canada N6A 5B9 (corresponding author). E-mail: mnehdi@eng.uwo.ca
2. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Univ. of Western Ontario, 1151 Richmond St., London ON, Canada N6A 5B9. E-mail: salmarti@uwo.ca